4028279977 has 2 divisors, whose sum is σ = 4028279978. Its totient is φ = 4028279976.

The previous prime is 4028279963. The next prime is 4028280023. The reversal of 4028279977 is 7799728204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3585135376 + 443144601 = 59876^2 + 21051^2 .

It is a cyclic number.

It is not a de Polignac number, because 4028279977 - 2¹⁹ = 4027755689 is a prime.

It is not a weakly prime, because it can be changed into another prime (4028279077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014139988 + 2014139989.

It is an arithmetic number, because the mean of its divisors is an integer number (2014139989).

Almost surely, 2^4028279977 is an apocalyptic number.

It is an amenable number.

4028279977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028279977 is an equidigital number, since it uses as much as digits as its factorization.

4028279977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 4028279977 is about 63468.7322781856. The cubic root of 4028279977 is about 1591.1332423201.

The spelling of 4028279977 in words is "four billion, twenty-eight million, two hundred seventy-nine thousand, nine hundred seventy-seven".